OPC Registration in Kolkata

At a glance

What an OPC is, and its honest limits

A One Person Company is a private limited company with a single member, introduced by the Companies Act, 2013 to give solo founders limited liability without a nominal second shareholder. Registered in Kolkata, the file sits with ROC Kolkata-I / Kolkata-II.

Being straight about the constraints, because they decide whether an OPC is right for you:

• ✓Only a natural person who is an Indian citizen and resident may form or be a nominee of an OPC. A company cannot.
• ✓A person can form only one OPC and be the nominee of only one.
• ✓An OPC cannot carry on non-banking financial investment activity.
• ✓An OPC cannot be converted into a Section 8 company.
• ✓It is not a structure external investors subscribe to. If you expect to raise equity, a private limited company is the better starting point.

Conversion thresholds

An OPC does not remain an OPC indefinitely. Once paid-up share capital exceeds Rs 50 lakh or average annual turnover of the immediately preceding three financial years exceeds Rs 2 crore, the OPC must convert into a private or public limited company.

Conversion is filed with ROC Kolkata-I / Kolkata-II, the same registrar that holds the original incorporation. Planning for it early is cheaper than reacting to it, because conversion carries its own filings, a fresh set of statutory registers and a change in the annual compliance load.

West Bengal professional tax

West Bengal levies professional tax. An entity registered in Kolkata must obtain professional tax registration and file the associated returns, which is an ongoing obligation rather than a one-time cost.

An OPC in Kolkata picks this up from incorporation, administered by the Directorate of Commercial Taxes, West Bengal. The liability attaches to the company and to the sole director regardless of profitability, and it carries periodic returns rather than being a one-time registration.

For a solo founder this matters more than it looks. You are the entity and the director, so both limbs of the West Bengal professional tax obligation land on the same person.

Which registrar holds the file

Documents required

From the member and the nominee

• ✓PAN and Aadhaar of the member
• ✓PAN and Aadhaar of the nominee
• ✓Address proof dated within two months for both
• ✓Passport-size photographs
• ✓Written consent of the nominee in Form INC-3

For the Kolkata registered office

• ✓Utility bill dated within two months
• ✓Rent or lease agreement where not owned
• ✓No-objection certificate from the owner

The process, step by step in Kolkata

Step 1. DSC for the member and director

A Class 3 DSC is issued for the sole member, who is usually also the sole director.

Step 2. Obtain nominee consent in INC-3

The nominee's written consent is obtained before filing. Without it the application cannot proceed, and this is the step that most commonly delays an OPC.

Step 3. Name reservation via SPICe+ Part A

The name is reserved, and must carry the OPC suffix in the prescribed form.

Step 4. Draft MOA and AOA

The MOA records the nominee, and the registered office clause states a Kolkata address.

Step 5. File SPICe+ Part B

The incorporation application is filed and routed to ROC Kolkata-I / Kolkata-II. West Bengal stamp duty on MOA and AOA is e-stamped through the same gateway.

Step 6. Certificate of Incorporation

ROC Kolkata-I / Kolkata-II issues the COI with CIN, along with PAN and TAN.

Step 7. Post-incorporation

Bank account, INC-20A within 180 days, and West Bengal professional tax registration.

Timeline

Government charges

Our fees

All plans exclude GST. Government fees and state stamp duty are paid at actuals and shown separately on your invoice.

All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.

Annual compliance

• ✓INC-20A commencement declaration within 180 days
• ✓Auditor appointed by the board within 30 days of incorporation, with ADT-1 filed
• ✓AOC-4 and MGT-7A annual filings - an OPC files MGT-7A rather than MGT-7
• ✓An OPC is exempt from holding an annual general meeting
• ✓West Bengal professional tax returns

Penalties

OPC compared with the alternatives

Why CorporateWalla

We work from 129A, Bangur Avenue, Block A, Near Reliance Smart, Kolkata 700055. Kolkata is our home city.

• ✓We will tell you if a private limited company suits you better. An OPC that has to convert in eighteen months costs more overall.
• ✓Nominee consent handled at the start, since it is the usual cause of delay
• ✓50% upfront, 50% on delivery

Mistakes we see on Kolkata OPC files

• ✓Choosing an OPC while planning to raise equity within a year. Investors do not subscribe to an OPC, so conversion becomes an immediate cost.
• ✓Leaving the nominee until the filing stage. INC-3 consent is mandatory and cannot be worked around.
• ✓Missing the conversion thresholds. Crossing Rs 50 lakh paid-up capital or Rs 2 crore average turnover triggers a mandatory conversion that is easy to overlook.
• ✓Filing MGT-7 instead of MGT-7A. An OPC uses the abridged form.

Legal basis

Authority sources: Ministry of Corporate Affairs at mca.gov.in.

A Kolkata example

A Kolkata solo consultant incorporated an OPC for the limited liability, then signed an enterprise client that pushed turnover past the three-year average threshold sooner than expected. The mandatory conversion to a private limited company landed in the middle of an audit cycle, with fresh statutory registers, a changed compliance load and a filing sequence that had to be worked around the existing year end. Choosing a private limited company at the outset would have cost slightly more and avoided all of it.

Illustrative scenario based on typical file patterns. Not a named client engagement.

Related services

Same city: Private Limited Company Registration in Kolkata, LLP Registration in Kolkata, Auditor Appointment in Kolkata.

Related pages

• LLP Registration in Kolkata
• Auditor Appointment in Kolkata

Reviewed by CA & CS Team - CorporateWalla · Last Updated 28 July 2026 · Reviewed for opc registration in kolkata · Sources: Ministry of Corporate Affairs, PIB Release 2210213

Canonical: https://corporatewalla.com/kolkata/opc-registration